3240 Epoxy fiber glass cloth laminated sheet (grade A): dip alkali-free glass fiber cloth in epoxy phenolic resin, then bake and heat press. It has good mechanical and dielectric properties with thermostability andmoisture resistivity and good machinability. The thermostability grade is B.It is widely used in generator,motor,electronic apparatus as insulatingmaterial and components. It is also suitable under oil pressure of transformer and wet environment.

Mechanicalstrength of grade A,B,C of 3240 series are the greatest. So they are often made into electrical insulation parts which has high requiement on hardness. They are also used for hammer handle,helve,manhole cover,etc.

However,surface of grade C is not flat with bad thickness tolerance. If customers has high requirement, they can choose to buy 3240-A and 3240-B.